Recent drone footage has revealed that southern resident killer whales are using bull kelp in innovative ways, specifically for social grooming. Researchers observed orcas carefully extracting sections of kelp and pressing them against each other, similar to a playful interaction but serving a deeper purpose. This behavior, which involves all ages of orcas, signifies more than mere play. It highlights a remarkable adaptability and social complexity in these marine mammals, adding them to the list of animals known to utilize tools in their behaviors.
The researchers watched orcas yank out sections of bull kelp stipes, using them for social grooming, showcasing a new example of tool use among marine mammals.
An orca places a bull kelp stipe on its face, nuzzling against another killer whale, reinforcing social bonds through this unique grooming technique.
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